GH4049高温合金球体渗铝工艺研究  

Study on Aluminizing Process of GH4049 Superalloy Sphere

作　　者：赖道辉 甘国荣 韦芙丹 LAI Daohui;GAN Guorong;WEI Fudan(School of Professional Technology and Education,Guangxi Science&Technology of Normal University,Laibin 546199,China;Areo Engine Corporation of China Gui Zhou Liyang Aviation Power Co.,Ltd.,Guiyang 550014,China)

机构地区：[1]广西科技师范学院职业技术教育学院,广西来宾546199 [2]中国航发贵州黎阳航空动力有限公司,贵州贵阳550014

出　　处：《热加工工艺》2023年第16期130-132,138,共4页Hot Working Technology

基　　金：广西科技计划项目资助项目(桂科AD22080060)。

摘　　要：为了提高高温合金GH4049球体的耐磨性及延长其使用寿命,采用固体渗铝法对其表面进行渗铝处理,分析了不同渗铝温度、渗铝时间对渗层深度和硬度的影响。结果表明,随着渗铝温度和渗铝时间的延长,渗层深度越深,而中心硬度有所降低;在渗铝温度为950℃,渗铝保温时间为10~12 h时,获得的渗铝层深度为30~50μm,心部的硬度达到30.5~37.5 HRC,能够满足生产工艺要求。In order to improve the wear resistance of superalloy GH4049 sphere and extend its service life,the surface of superalloy GH4049 sphere was aluminized by using the solid aluminization method,and the influences of different aluminizing temperatures and time on the depth and hardness of the aluminum layer were investigated.The results show that the depth of the aluminum layer increases with the increase of aluminizing temperature and time,but the hardness of the core decreases.When the aluminum infiltration temperature is 950℃,and the aluminum infiltration insulation time is 10-12 h,the obtained aluminum infiltration layer depth is 30-50μm,and the core hardness reaches 30.5-37.5 HRC,which can meet the production process requirements.

关 键 词：GH4049 渗铝 渗层深度 

分 类 号：TG156.86[金属学及工艺—热处理]